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25 Cards in this Set
- Front
- Back
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Pollutant |
A chemical that's harmful because it's in the wrong place |
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Atoms |
Tiny particles that make up all substances |
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Particles |
Tiny particles that are in the air |
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Hydrocarbon |
A compound made up of only hydrogen and carbon. Many are fossil fuels. |
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Combustion |
Burning |
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Oxidation |
A reaction where oxygen is added. |
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Wet scrubbing |
When acidic sulfur dioxide can be removed from flue gases by reacting with alkalis. |
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Catalytic converters |
Convert nitrogen monoxide into harmless nitrogen and oxygen. |
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Biofuels |
Renewable energy resources made from plants and waste. |
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Molecule |
A group of atoms that have been bonded together |
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Mixture |
Contains different substances that are not chemically bonded together |
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Synthetic |
Man made |
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Melting point |
The temperature when a solid material turns to liquid |
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Strength |
How good a material is at resisting a force |
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Tensile strength |
How much a material can resist a pulling force |
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Compressive strength |
How much a material can resist a pushing strength |
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Stiffness |
How good a material is at not bending when a force is applied |
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Hardness |
How difficult it is to cut into a material |
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Density |
A materials mass per unit volume |
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Crude oils |
A mixture of hydrocarbons |
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Strong covalent bonds |
Bond between carbons and hydrogens within a hydrogen molecule |
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Intermolecular forces |
Attraction between different hydrocarbon molecules in mixture. |
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Refining |
Thr process of separating crude oil |
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Fractional distillation |
When hydrocarbons are separated according to their boiling points |
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Polymerisation |
Small molecules linking together |
